Author: Rumi

Hasan T. Emdad is an ICT Solution Architect, Project Manager with 12+ year expertise in HW selection, OS expertise on Linux and MS, Supervising Application SW on Pearl, Java, dot Net and PHP with DB experience of MySQL, Postgre, MS and Oracle. He was involved in setting up several Turn Key ICT including Telecom based projects on various government and autonomous bodies in the country. Developed more than 50 applications running with different operators and users. Managing a team of more than 10 in-house engineers and developers and manages an outsourcing team experts and contributors. Very recently engineered Public Key Infrastructure (PKI) on Enterperise and Root Certifying Authority and deployed scalable Cloud Computing and Managed Services. He has post graduated (MBA) from University of Dhaka, Bangladesh.

rec_control man section

Rumi,

Name rec_control – control pdns_recursor Synopsis rec_control [–help] [–socket-dir] [–socket-pid] command .. Description rec_control(1) allows the operator to control a running instance of the pdns_recursor. The commands that can be passed to the recursor are described on http://doc.powerdns.com/rec-control.html Examples To stop the recursor by hand, run: # rec_control quit To…

Continue Reading

PowerDNS: Rec Control

Rumi,

make rec_control be more user friendly make wipe-cache accept non-dot terminated domain names make wipe-cache return count of wiped ('wopen'?) domains document best current practice when wiping (wipe more than www.domain, wipe domain as well) REC_CONTROL(1) ============== NAME —- rec_control – control pdns_recursor SYNOPSIS ——– 'rec_control' [–help] [–socket-dir] [–socket-pid] command…

Continue Reading

Cacti: PowerDNS Recursor Templates

Rumi,

Here are a couple of graph templates for the PowerDNS recursor. They need a shell script to be installed on the DNS server, and an net-snmp config change. Add the following to the snmpd.conf extend pdns-rec /usr/local/bin/pdns_stats.sh Put pdns_stats in /usr/local/bin, so that snmpd can find it (rename from pdns_stats.txt)….

Continue Reading

Cacti: How ton install on a Debian server

Rumi,

======================================= A Newer version of this document is available at- Cacti on Debian (Updated) ======================================= The following programs are needed to run cacti: – apache2 for the web server – mysql-server for the database – php5 for the server-based script – php5-common – php5-cgi – php5-cli – php5-mysql – snmp…

Continue Reading

Mrtg: example cfg for memory, cpu, disk etc.

Rumi,

CPU Usage /etc/mrtg/cpu.cfg WorkDir: /var/www/mrtg LoadMIBs: /usr/share/snmp/mibs/UCD-SNMP-MIB.txt Target[localhost.cpu]:ssCpuRawUser.0&ssCpuRawUser.0:public@127.0.0.1+ ssCpuRawSystem.0&ssCpuRawSystem.0:public@127.0.0.1+ ssCpuRawNice.0&ssCpuRawNice.0:public@127.0.0.1 RouterUptime[localhost.cpu]: public@127.0.0.1 MaxBytes[localhost.cpu]: 100 Title[localhost.cpu]: CPU Load PageTop[localhost.cpu]: Active CPU Load % Unscaled[localhost.cpu]: ymwd ShortLegend[localhost.cpu]: % YLegend[localhost.cpu]: CPU Utilization Legend1[localhost.cpu]: Active CPU in % (Load) Legend2[localhost.cpu]: Legend3[localhost.cpu]: Legend4[localhost.cpu]: LegendI[localhost.cpu]: Active LegendO[localhost.cpu]: Options[localhost.cpu]: growright,nopercent Memory Usage /etc/mrtg/mem.cfg LoadMIBs: /usr/share/snmp/mibs/HOST-RESOURCES-MIB.txt Target[localhost.mem]: .1.3.6.1.4.1.2021.4.6.0&.1.3.6.1.4.1.2021.4.6.0:public@localhost…

Continue Reading

MRTG Indexmaker

Rumi,

Regular shorcut way: #indexmaker /etc/mrtg.cfg > /var/www/mrtg/index.html Now you need to reboot your system wait for five minutes or so and then take a look at your summary home page. If your Debian,ubuntu,kubuntu system’s IP address is 192.168.0.1 then you’d type in the following in the address bar of a…

Continue Reading